Fire Extinguisher Chapter 8 Flashcards

Questions and Answers

If a private residence has a single fire extinguisher, where should it be located?

Kitchen

Which class of fire includes cloth?

Class B

Class D

Class A (correct)

Class C

What is the most commonly used extinguishing agent for class A fires?

Water

Which class of fires involves energized electrical equipment?

Class C Signup and view all the answers

Which extinguishing agent is suitable for use on a class C fire?

Carbon Dioxide Signup and view all the answers

The traditional symbol for a class D fire extinguisher is a(n) ___________.

Yellow Star Signup and view all the answers

A class C extinguisher is rated for use on ________.

Energized electrical equipment Signup and view all the answers

What does it mean when a fire extinguisher has a pictograph with a red slash through it?

Use on that class of fire could be hazardous Signup and view all the answers

To qualify as a light hazard for the purpose of extinguisher selection and placement, the majority of materials in the area must ________.

be noncombustible Signup and view all the answers

Dry chemical extinguishers may be used on class C fires because they __________.

do not conduct electricity Signup and view all the answers

Which statement about the numerical rating of a class K extinguisher is correct?

There is no numerical rating on a class K fire extinguisher Signup and view all the answers

What residue does a CO2 fire extinguisher leave when discharged?

None Signup and view all the answers

The use of halon 1211 is strictly controlled because it is ______.

Harmful to the environment Signup and view all the answers

Which agent is approved for use in a class K system?

Wet chemical Signup and view all the answers

Class D agents work primarily by _____.

Forming a crust over the fuel Signup and view all the answers

A class A fire extinguisher with a numerical rating of 2 contains ______________ gallons of water.

2.5 Signup and view all the answers

What is the best way to extinguish a class C fire?

Shut off the power and treat it as a class A or B fire Signup and view all the answers

Which class of fire is depicted in the pictograph system by a burning trash can next to a wood fire?

Class A Signup and view all the answers

Which hazard category includes automotive service or repair facilities?

Extra Signup and view all the answers

Which extinguishing method is being used when a foam blanket is placed over the surface of a burning liquid?

Cutting off the oxygen supply Signup and view all the answers

How do multipurpose dry chemical agents prevent rekindling of class A fuel?

By forming a crust over the fuel Signup and view all the answers

A class B foam extinguisher is not rated for which fuel?

Cooking oil Signup and view all the answers

Which statement best summarizes when a dry chemical extinguisher should be serviced and recharged?

After any discharge Signup and view all the answers

Which statement is correct regarding class D extinguishing agents?

The specific agent must be matched to the specific fuel. Signup and view all the answers

What does a rating of 40 on a class B extinguisher mean?

Sufficient extinguishing power for 40 square feet of burning fuel Signup and view all the answers

Study Notes

Fire Extinguisher Locations and Classes

A single fire extinguisher in a private residence should be located in the kitchen.
Class A fires involve combustible materials such as cloth.
The most common extinguishing agent for Class A fires is water.
Class C fires involve energized electrical equipment.

Extinguishing Agents and Symbols

Carbon Dioxide is suitable for use on Class C fires.
A Class D fire extinguisher traditionally displays a yellow star symbol.
Class C extinguishers are specifically rated for use on energized electrical equipment.
A pictograph with a red slash on a fire extinguisher indicates that using it on that class of fire could be hazardous.

Fire Extinguisher Ratings and Hazards

For a space to qualify as a light hazard, the majority of materials must be noncombustible.
Dry chemical extinguishers are safe for Class C fires as they do not conduct electricity.
Class K extinguishers do not have a numerical rating.
CO2 fire extinguishers leave no residue when discharged.

Environmental Considerations and Specific Agents

The use of Halon 1211 is controlled due to its harmful impact on the environment.
Wet chemical agents are approved for use in Class K systems.
Class D agents extinguish fires primarily by forming a crust over the fuel.

Numerical Ratings and Operational Procedures

A Class A fire extinguisher rated 2 contains 2.5 gallons of water.
The best method to extinguish a Class C fire is to shut off the power and treat it as a Class A or B fire.
The pictograph system depicts Class A fires with a burning trash can next to a wood fire.

Hazard Categories and Extinguishing Methods

The "Extra" hazard category includes automotive service or repair facilities.
Placing a foam blanket over a burning liquid cuts off the oxygen supply.
Multipurpose dry chemical agents prevent rekindling of Class A fuel by forming a crust over it.

Limitations and Maintenance

A Class B foam extinguisher is not rated for cooking oil.
Dry chemical extinguishers should be serviced and recharged after any discharge.
Each Class D extinguishing agent must specifically match the fuel type it is intended to combat.

Extinguisher Ratings

A Class B extinguisher with a rating of 40 indicates sufficient extinguishing power for 40 square feet of burning fuel.

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Description

Test your knowledge about fire extinguishers with these flashcards based on Chapter 8. Learn important concepts like the locations for extinguishers and classifications of fires. Perfect for anyone looking to enhance their understanding of fire safety equipment.